Pith Number

pith:4I2BJXTF

pith:2018:4I2BJXTF42WSIZVGDLAWWGL2IA

not attested not anchored not stored refs pending

Estimation of Static and Dynamic Urban Populations with Mobile Network Metadata

Ghazaleh Khodabandelou, Marco Fiore, Mounim El-Yacoubi, Vincent Gauthier

arxiv:1810.12909 v1 · 2018-10-30 · cs.NI · cs.CY · cs.SI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4I2BJXTF42WSIZVGDLAWWGL2IA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:01:52.630561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e23414de65e6ad2466a61ac16b197a40088ca68011295ed486e02ab9ba8b7969

Aliases

arxiv: 1810.12909 · arxiv_version: 1810.12909v1 · doi: 10.48550/arxiv.1810.12909 · pith_short_12: 4I2BJXTF42WS · pith_short_16: 4I2BJXTF42WSIZVG · pith_short_8: 4I2BJXTF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4I2BJXTF42WSIZVGDLAWWGL2IA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e23414de65e6ad2466a61ac16b197a40088ca68011295ed486e02ab9ba8b7969

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63cfdcb97b480d4f801fdf116cf973a41e731209a6f893b6fbce07067a8ba443",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2018-10-30T14:21:25Z",
    "title_canon_sha256": "55a5fd82e92fccd7dd16cd8f2200e171b52b2a1db491a8cbbcb1ede7c38d58b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12909",
    "kind": "arxiv",
    "version": 1
  }
}